2016 - Sustainable Industrial Processing Summit & Exhibition
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06 - 10 November 2016, Sanya Marriott Yalong Bay Resort & Spa, Hainan-Island China
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PLENARY LECTURES AND VIP GUESTS
Tateo_Usui

Tateo Usui

Osaka University

Iron Carburization Rate By Carbon In Slags Through Carbon/slag And Slag/metal Reactions
D'Abreu International Symposium (4th Intl. Symp. on Advanced Sustainable Iron and Steel Making)

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Abstract:

The carbide capacity of CaO–SiO2–Al2O3 slags and the iron carburization rate through consecutive phases of carbon, slag, and metal are measured at 1723 K. The carbide capacity of high-basicity slag is higher than that of simulated blast-furnace (BF) slag. The iron carburization rate through CaO–SiO2–Al2O3 slags is much smaller than the rate of direct carburization or that through slags including iron oxide. It is found that the carburization rate of iron through slags increases as slag basicity increases. The apparent rate constant of the carburization reaction, k [mol/(m2 s)], is derived as follows: k = 2.71 × 10−5 for the simulated BF slag and k = 8.00 × 10−5 for the high-basicity slag. The rate increases with increasing slag basicity, increasing carbide capacity and decreasing oxygen partial pressure.
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